Public bug reported:
[Impact]
Some HDMI and DP doesn't count as external monitor on ICL MST.
[Fix]
Fix external port MST check on Ice Lake.
[Test]
DP and HDMI ports can only mirror display.
After applying this patch bot DP and HDMI ports can drive its own external
display.
[Regression Potential]
Low. This fix targets Gen 11 and Gen 12 Intel graphics, older systems are
unaffected.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: oem-priority originate-from-1853415 somerville
** Tags added: oem-priority originate-from-1853415 somerville
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https://bugs.launchpad.net/bugs/1854432
Title:
Fix MST support on Ice Lake
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